MTE M-1778, M-1777, M-1781, M-1776, M-1775 Product Specifications

www.mtecorp.com

USA Headquarters

W147 N9525 Held Drive

Menomonee Falls, WI 53051 USA

Telephone: [phone]

Fax: [phone]

e-mail: [e-mail]

Form #1142E May 2003

DIMENSIONS:

Selection & Specification Tables

208 Volts 240 Volts 380 Volts 480 Volts 600 Volts

Part Number M-1778 M-1777 M-1781 M-1776 M-1775

Rated AC Voltage 250 275 420 550 680

Average Power Dissipation 1 watt 1 watt 1 watt 1 watt 1 watt

Transient Energy (Joules) 130 j 140 j 160 j 210 j 250 j

Peak Current 8/20 us (amps) 6500 6500 6500 6500 6500

Varistor Voltage @ 1MADC ±10% 390 430 680 910 1100

Max. Clamping Voltage 650 710 1120 1500 1815

Max. Clamping Current 100 100 100 100 100

Capacitance @ 1KHz 700pf 630pf 420pf 320pf 250pf

Response Time <15nsec <15nsec <15nsec <15nsec <15nsec

Number of Internal Mov’s 3 3 3 3 3

Number of Leads 4 4 4 4 4

Operating Temperature from -40°C to +85°C

Wire Size All leads are 14 AWG

A

B
C

A
B
C
N

Delta Power System

Wye Power System